Radio battery construction



June 24, 1930. P, M. MARKO RADIO BATTERY CONSTRUCTION Fild July 5, 192479 r 7f I $7772??? By I "ATTORNEYS WITNESSES Q .9

Patented 'June 24, 1930 UNITED STATES PATENT! OFFICE PAUL M. MARIO, OFBROOKLYN, NEW YORK, ASSIGNIOR TO WILLARD STORAGEYBATTERY COMPANY, OICLEVELAND, OHIO, A CORPORATION OF WEST VIRGINIA RADIO BATTERYCONSTRUCTION Application filed July 5, 1924- Serial No. 724.,833.

simple and tight joint to prevent leakage or splashing.

Another object of'the invention is to pro vide a combination andarrangement of parts which are extremel simple in their construction andassem ly so that the battery can be manufactured at a very Thisinvention is an improvement over the radio battery construction shownin' my patent No. 1,485,282 issued February 26, 1924.

The invention is illustrated in the drawings, of which- Figure 1 is asectional view of the upper end of a batteryshowing' the closureconstruction;

Fig. 2 is a plan view of the battery;

Fig. 3 is a sectional view through one form of closure cap; Y

* Fig. 4 is a sectional view through the upper end of another form ofclosure con- 30 struction;

Fig. 5 is a sectional view through a form of closure cap; 2 I

Fig. 6 is a plan view of the cap shown in Fig. 5; and Fig. 7 is asectional view through a still further form of closure cap.

The forms of the invention shown in the drawings are preferred forms,although it is understood that modifications in the constructionandarra'ngement of the parts and.

' in the character of the materials used may be adapted withoutdeparting from-the spirit of the lnvention as set forth in the appendedclaims.

.In its general aspect the mvention contemplates the rovlslon of a partsto form t e. closure for t e container of a radio battery, which will befew in' number and yet so efiiciently related as to form a strong anddurable type of closure low cost and 15 yet be very strong and durable.

plurality. of

capable of being manufactured at an ex; tremely low cost To this end Iprovide a cap portion of some pliable material such as soft rubber whichis disposed across the top of the container and provided with passagesthrough which the terminals of the electrodes to a battery extend. Thiscap is held in place by a ring which embraces the end of the container,said ring being provided with means for engaging thetop of the caparound its periphery to hold the rap firmly in place on top of thecontainer.

The invention further contemplates the combination with the cap of softpliable material such as rubber, of a layer of stifier material such ashard rubber, which may be connected thereto in any suitable manner" suchas by vulcanization. This reenforcement is intended for the purpose ofreventing the pliable cap from sagging or ending under the weight of theparts connected thereto whenever the container is of considerable size.

The invention still further contemplates the provision of certain formsof thecap through the cap, in order to insure that no v leakage of theliquid occurs.

In the referred forms of the invention as shown 1n the drawings, Iprovide'a container 1, which is preferably of glass, the upper end ofwhich is provided with threads 2 adopted to be engagedby a sleeve orringor cover member 3, this ring being provided with a flange 4 whichextends inwardly a short distance sufiicient to extend over the u peredge of the. cap. This flange is adapted, as the ring 3 engages with the.u per end of the container 1, to bearon t e periphery of a closure cap5. This closure cap .is preferably made of any suitable 10o pliablematerial such as soft rubber, although, of course, it may be made ofhard rubber. This cap is provided with nipples such as 6, preferablyformed integral with the cap and of substantial height compared to theirwidth. These nipples are pierced to permit the passage therethrough ofthe upper ends 7 and 8 of the electrodes of the battery.

In some forms of the cap I provide a dependent flange such as 9 whichfits snugly within and against the inner walls of the container 1 so asto further insure 'a tight joint between the cap and the container. Incertain forms of the cap I also provide a recess 10 cut out of the undersurface of the cap so that liquid which may be formed on the upper endsof the electrodes will have a longer path to travel to get out throughthe joint than otherwise, and in this respect the liability of leakageis further reduced. The cap 5 is provided with a filling aperture 11 anda vent hole 12. I 1

In another form of the invention, shown in Fig. 4, the container 13 isprovided with threads 14 engageable with a ring 15 having an inwardlyextending flange 16 adapted to bear on the periphery of a cap 17,preferably of soft rubber. This cap, however, is provided with areenforcing layer 18 of, preferably, stifl'er material, such as hardrubber,

which is preferably vulcanized thereto. This cap 17 is also providedwith nipples 19 through the upper ends 20 and 21 of which the batteryelectrodes extend. It will be noted in Fig. 4 that the lower edge of thecap 17 extends straight across the top of the container.

In the form shown in Fig. 5 the cap 17 is provided with a layer 18 ofreenforcing material, and nipples 19. In this form, however, the cap isprovided on its under surface with a dependent flange 22, as well as arecess 23 on its under surface. This recess is formed for the samepurpose as the recess 10 previously mentioned. The cap 17 1s alsoprovided with a filling aperture 24 and a vent hole 25;

In the form of the cap 17 shown in Fig. 7 the lower edge of thedependent flange 22 extends straight across without being provided witha recess 23.

The reason why the layer of reenforcing material, such-assrubber,is'applied'or vulcanized to the cap of softermaterial is to .give it theproper stiffness whenever the cap is to be used on the ends ofcontainers of substantial diameter where the liability of a vsoftrcap tosagor bend is greater than/with A smaller sized containers.

In the general contem lation of the invention, therefore, it can" eobserved. that I provide a cap which is laid on the upper. end of thecontainer and, held thereon by the engagement' therewith of part of a.ring which embraces the u per end of the container, this part pre erablybeing an inwardly extending flange. It will be noted, however, that thisflange extends only far enough inwardly to engage the edge of the capand does not interfere with the area 00- cupied by the nipples, so thatthe ring can be screwed on tightly against the cap without affecting theposition of the nipples. Therefore the closure can be made very tightwithout the liability of the ca being twisted. The elimination of thisliability prevents the parts of the battery connected to the cap romgetting out of alinement.

What I claim is 1. A battery construction, which comprises a cap ofpliable material adapted to be placed across the open end of a batterycontainer and to rest on the upper edge thereof, a dependent flangeformed on the under surface of the cap, said flange adapted to provide ashoulder to bear against the inner upper edge of the container to form atightjoint therewith and means engageable with' said cap to force thelatter into contact with the upper edge of said container.

2. A battery construction, which comprises a cap of pliable materialadapted to be placed across the open end of a battery container and torest on the upper edges thereof, a dependent flange formed onthe undersurface of the cap, said flange adapted to provide a shoulder to bearagainst the inner upper edge of the container to form a tight jointtherewith, and a layer of stiffer material attached to the cap toreenforce the same.

' 3. A battery construction, which comprises a cap of pliable materialadapted to be placed across the open end of a battery container and torest on the upper edges thereof, a dependent flange formed on the undersurface of the cap, said flange adapted to provide a shoulder to bearagainst the inner edge of the container to form a tight joint therewith,a layer of stiffer material attached to the cap to reenforce the same,and a plurality of apertured nipples. formed on the cap permitting thepassage therethrough of the upper ends of the battery electrodes.

4. A ,battery construction, which comprises a capof pliable materialadapted to be placed across the open end of a battery container and torest onthe upper edges thereof, a dependent flange formed ,on the undersurface of the cap, said flange adapted to provide a shoulder to bearagainst the inner upper edge of the-container toform a tightjointtherewith, :a layer of stifier material attached to the cap toreenforce the same, and a plurality 'ofapertured nipples face providedwith a recess across the area occupled by the nipples whereby lealrnalgeof liquid through the joint is substanti y eliminated.

5. A storage battery comprising a container having a screw top andcontainir positive and negative plates having upstan ing terminals orposts, a cover composed of a relatively soft member having integralbosses through which the extend and in which they are tightly fitted toform a seal, and a relatively hard member adapted to be screwed onto theto of the container and serving to clamp e relatively soft member ontothe container, said member having a central 0 ening through which saidbosses and terminals extend.

- 6.. A cover adapted to engage a cell jar comprising a flat portionadapted to engage the top of the 'ar, an annular portion for engagingthe side of the jar, a projection on the flat lpprtion for enga a post,the projection ing integral with the flat portion and compris' materialwhich is more pliable than the t portion, whereby the projection mayfrictionally position a post and be the sole means for supporting itwithin said jar.

' 7. In combination, a storage cell having one end thereof openandhaving the exterior portion threaded ad'acent said open end, plateswithin the a cover having a top portion and .a flanged portion, theflanged portion being interiory threaded for engaging the threadedportion of the jar, said cover being sufliciently pliable on the top'portion to provide a leak-proof joint with the jar and to be the solemeans 'for positioning the-cell plates, and theflanged 4o portion beingsufliciently rigid to prevent withdrawalof the cover from the jarwithout unscrewing the threaded portion.

8. A battery construction, 'which comprises a container provided with asc'rewthreaded end portion,=a ca of pliable material adapted to be placross the open endof said container and to rest upon the upper edgethereof, said cap having formedintegral therewith a depending flangeadapted to bear a inst the inner up r portlon of said container, and ascrewed cover member cooperating with the screwthreaded portion of saidcontainer and having a portion enga ble" with said cap to hold thelatter ngi y in contact with the upper edge of said container.

.t g PAUL M. MABKO.

